72781490 is an even 8-digits composite number following 72781489
and preceding 72781491 . In scientific notation, it is written as 7.2781490 × 10^7.
The sum of its digits is 38. It has a total of 5 prime factors and 32 positive divisors.
There are 28054080 positive integers (up to 72781490) that are relatively prime to 72781490.
72781490 has 32 divisors, whose sum is 135806976
The reverse of 72781490 is 09418727
Previous prime number is 383
Is Prime? no Number parity even Number length 8 Sum of Digits 38 Digital Root 2
Name
seventy-two million seven hundred eighty-one thousand four hundred ninety
Scientific notation
7.2781490 × 10^7
Engineering notation
7.2781490 × 10^6
Prime Factorization
2 × 5 × 31 × 383 × 613
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
72781490 Product of the distinct prime numbers
The prime factorization of 72781490 is 2 × 5 × 31 × 383 × 613.
Since it has a total of 5 prime factors.
2 , 7 , 85 , 67 , 423 , 716 , 3468 , 8861 , 24858 , 39978 , 111953 , 3861 , 6970686 , 5982008 , 25004882 , 24832393 , 829581693 , 764881477 , 1820419731 , 3002410234
n×2
145562980
n×3
218344470
n×4
291125960
n×5
363907450
n÷2
36390745
n÷3
24260496.666667
n÷3
18195372.5
n÷5
14556298
n2
5297145286620100
n3
3.8553412670669E+23
n4
2.8059748187562E+31
n5
2.0422302821155E+39
2 √n8531.2068313926
3 √n417.51650406269
4 √n92.364532323791
5 √n37.359769532795
1 , 2 , 5 , 10 , 31 , 62 , 155 , 310 , 383 , 613 , 766 , 1226 , 1915 , 3065 , 3830 , 6130 , 11873 , 19003 , 23746 , 38006 , 59365 , 95015 , 118730 , 190030 , 234779 , 469558 , 1173895 , 2347790 , 7278149 , 14556298 , 36390745 , 72781490
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-72781489 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
1 Returns the nth root of the product of n divisors
H Harmonic Mean
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72781490 can be divided by 32 positive divisors.
The sum of these divisors (counting 72781490) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010101101000111010110010
3
Ternary
12001221200102202
4
Quaternary
10111220322302
5
Quinary
122113001430
6
Senary
11115543202
8
Octal
425507262
10
Decimal
72781490
12
Duodecimal
2045ab02
16
Hexadecimal
4568eb2
20
Vigesimal
12ehdea
36
Base36
17byk2
md5
8fe30a93d3c675352b1253f9c781090d
sha1
8f6bc80d63a001fc401f2e2a2e76a522c4449939
sha256
dae58fbb75d61eaa220ab6947404a1f66a4b46ca266cfc3b1c90ae900eaf940d
sha512
5df04435db2469457a321238f2d04f966f6e381895a18cb0c9843e6826ff9188aae0a50ee494a97eb0ce5f8a84cca369be96a4314bd497e59706e884dff98812
ripemd-160
0c5e2a374df1ae5390e64c9cb57146bbec5026b8
Diameter
145562980
Circumference
457299588.60264
Area
1.6641472717444E+16
Volume
1.6149215735598E+24
Surface area
6.6565890869774E+16
Circumference
457299588.60264
Perimeter
291125960
Area
5297145286620100
Diagonal
102928570.24772
Surface area
31782871719720600
Volume
3.8553412670669E+23
Space diagonal
126061238.53057
Perimeter
218344470
Area
2.293731192875E+15
Altitude
63030619.265283
Surface area
2.293731192875E+15
Volume
4.5435632562189E+22
Height
34309523.415907